Reinforced door for railway-cars of the dumping type



-G. G. GILPIN.

REINFORCED DOOR FOR RAILWAYICAHS OF THE DUMPING TYPE.

APPLICATION FILED AUG.30, 1919.

1,380,055, Patented May 31, 1921.

2 SHEETSSHEET 1.

G. G; GILPIN.

REINFORCED DOOR FOR RAILWAY CARS OF THE DUMPING TYPE.

APPLICATION FILED AUG.30| 1919.

1,380,055. R amLlszl.

2 SHEETS-SHEET 2- GARTH e. GILPIN, or RIVERSIDE, ILLINOIS, essreuoR To WALTER r. MURPHY, or

NEW YORK, N. Y.

REINFORCED DooR roR RAILWAY-CARS or THE DUMIPING TYPE.

Specification of Letters Patent.

Patented May 31, 1921.

Application filed August so, 1919. Serial No. 320,792.

To all whom it may concern:

Be it known that I, GARTH G. QIRPIN, a citizen of the United States, residing at Riverside, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Reinforced Doors for Railway-Cars of the Dumping Type, of which the followin is a specification.

My invention re ates to railway cars of' tend to deflect and warp them. My inven tion provides a sheet metal door for general service, hopper or other rallway .cars of the dumping type, which is reinforced by stiffening ribs'or corrugations so as to give the door maximum strength and stlifness to best resist the stresses and pressures to which the door is subjected when in service. The corrugations are so arranged that when the door is used in a car which is constructed so that the load passes over the doors in discharging the corrugations do not hinder the free flow of the material.

The invention consists of the new and improved constructions, arrangements and devices to be hereinafter described and claimed for carrying out the above stated object and such other incidental objects as will appear from the following description of the invention as illustrated in the drawings.

In the drawings Figure 1 is a fragmentary plan View of a railway car of the general service type furnished with drop bottom panels or doors made in accordance with my invention.

Fig. 2 is a vertical sectional view on line 2-2 of Fig. 1, with the door in its open position.

Figs. 3, 4. aI1d5 are plan views of modified constructions.

Like characters of reference designates like parts in the several figures of the drawin s.

Ihe door is shown as applied to a general service car but it will be obvious that doors of this character might be used to advantage in hopper cars or other cars of the dumping tygp.

eferring first to Figs. 1 and 2, 10 designates one of the side walls of a car, 11 the center sill structure thereof, and 12, 12 the cross members of the under frame. The

.door consists of a sheet metal panel 13 preferably formed with rigidifying flanges 14 which are down turned and may be pressed out integrally from the body of the sheet to form a continuous rim which gives strength and stiffness to the sheet. The door is hinged to the center sill 11 by means of a pair of hinges 15 comprising, in each case, a member 16 and a'strap extension for the same which is angular in cross section so that it tends to give strength and rigidity to the door. lYith the doors hinged to 'the canbodyin this general manner there has' been a tendency for the maginal portions of the sheet metal structure outside of the hinge straps to sag and deflect which makes the car leaky. To avoid this, and to give strength and rigidity to the door throughout I preferably press the door sheet. so as to form a pluralit of diagonally disposed corrugations whic 1 will cross the hinge straps and extend close to the lateral edges of the door. In Figs. 1 and 2 I have shown the door sheet as formed with two sets of diagonally disposed corrugations 17 which extend from the hinged and lateral edges of the door toward the center of the door and the edge opposite the hinged edge. This disposition of the corrugations gives very considerable added strength and rigidity to the door structure without materiall interfering with the flow of bulk materia from the car when the doors are dropped to the position shown in Fig. 2. p

The corrugations, instead of being disposed as. shown in Figs. 1 and 2, might extend from the hinged edge of the door outwardly, as shown at 18, Fig. 3. Or, as shown in Fig. 4, the corrugations, in this figure designated 19, might be parallel to each other and extend diagonally across the sheet. In Fig. 5 I have shown a different arrangement. Here the corrugations 20 radiate from the hinged ed e of the door sheet. The disposition o corrugations shown in Figs. 1 and 2 is considered preferable but the otherarrangements might be used to advantage to accomplish the desired particularly the lateral edges thereof in such a way as to interfere as little as ossible with the flow ofbulk material over the door.

The embodiments illustrated in Figs. 3, 4 and 5 are not claimed specifically herein. The specific features of these embodiments form the subject-matter of my copending divisional application, Serial No. 459,305 filed April 7, 1921.

I claim: A v

1. A sheet metal door for a railway car of the dumping type formed with a plurality ofparallel corrugations which extend diagonally across the doorv in the general direction of movement .oi' the load when discharging.

rugations.

2; A sheet metal door for a railway car of the dumping type, which-door is provided with hinges extending substantially across the door for hinging it to the bottom of the car and is formed with stiffening corrugations which extend diagonally across said hinges, said hinges being secured to the door at points between certain of said cor- 3. A sheet metal door for a railway car of the dumping type, which door is provided with hinges extending substantially across the door for hinging it to the bottom of the nally disposed corrugations which extend a resume from the hinged and lateral edges of the ing, in each case, a hinge member on the under side of the door and extending substantially across the same, said door being formed with corrugations which extend diagonally across said hinge members in the general direction of the movement of the load when discharging so as to strengthen and rigidity the marginal portions of the door outside of said hinges without substantial interference to the discharge of the load.

6. In a railway car of the dumping car type, the combination with the body of the car, of a sheet metal door, hinges for hinging the door to the body of the car comprising, in each case, a hinge member angular in cross. section on the under side of the door and extending across the same, said door being formed with diagonally disposed corrugations which cross said hinge member so as to strengthen and rigidify the marginal portions of the door outside of said hinges. 7 lln a railway car of the dumping car type, the combination with the body of the car, of a sheet metal door hinged to said car body and formed with a plurality of diagonal corrugations, disposed side by side so as to reinforce substantially the whole area of the door and extending toward the edge of the door opposite the hinged edge.

GARTH Gr. Gl LlPllN. 

